001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.codegen.intrinsics;
018    
019    import com.intellij.psi.PsiElement;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.Nullable;
022    import org.jetbrains.jet.codegen.ExpressionCodegen;
023    import org.jetbrains.jet.codegen.StackValue;
024    import org.jetbrains.jet.lang.psi.JetCallExpression;
025    import org.jetbrains.jet.lang.psi.JetExpression;
026    import org.jetbrains.jet.lang.resolve.BindingContext;
027    import org.jetbrains.jet.lang.resolve.calls.model.ResolvedCall;
028    import org.jetbrains.jet.lang.types.JetType;
029    import org.jetbrains.org.objectweb.asm.Type;
030    import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
031    
032    import java.util.List;
033    
034    import static org.jetbrains.jet.codegen.AsmUtil.putJavaLangClassInstance;
035    import static org.jetbrains.jet.lang.resolve.java.AsmTypeConstants.getType;
036    
037    public class JavaClassFunction extends IntrinsicMethod {
038        @NotNull
039        @Override
040        public Type generateImpl(
041                @NotNull ExpressionCodegen codegen,
042                @NotNull InstructionAdapter v,
043                @NotNull Type expectedType,
044                @Nullable PsiElement element,
045                @Nullable List<JetExpression> arguments,
046                StackValue receiver
047        ) {
048            JetCallExpression call = (JetCallExpression) element;
049            ResolvedCall<?> resolvedCall = codegen.getBindingContext().get(BindingContext.RESOLVED_CALL, call.getCalleeExpression());
050            assert resolvedCall != null;
051            JetType returnType = resolvedCall.getResultingDescriptor().getReturnType();
052            assert returnType != null;
053            putJavaLangClassInstance(v, codegen.getState().getTypeMapper().mapType(returnType.getArguments().get(0).getType()));
054    
055            return getType(Class.class);
056        }
057    }